I know what makes the prescription diet for urine crystals work, it's called DL-Methionine, it acidifies. If you fed that diet without the addition of that chemical your cat/dog would die of crystal overload. The poop they make that food out of is gross and is precisely the reason sooooo many cats have blockages and crystal problems. Not to mention sooo many other health issues. There are people I know who have animals that are, for whatever reason, prone to struvite crystals. A few feed high quality dry and raw diets, it's the particular animal. They ADD DL-Methionine or methiaform to their food, or pill them a few times a week to keep them in check. It has nothing to do with the benefit of SD's research and "testing", it has more to do with pharmacology. It's sad to hear vets say they understand that cats and dogs are carnivores but still say......."just feed the prescription, it will help". RWAR!!!!!

I know at my animal hospitals they had a branch of science diet "prescription diets" like a/d for pets that have to be tube fed, c/d for frequent uti's, w/d for obese pets, i/d for upset stomachs etc. I always wondered how they knew how to formulate those.

The weight loss formula is 25% fiber(peanut hulls)..........they poop more than they eat. It pretty disgusting, when they go back on regular food if you aren't careful(they tend to gorge) you're right back where you started. Not to mention the fact that their out put is enormous, they basically go on a starvation diet.

I can't say much to the other formulas since I haven't read the ingredient list. I think I would have the same opinion though, the basic crap is still in it just modified here and there for whatever the special need is. Lots of by-product, grain fractions, chemical preservatives and crap.

We feed both our dogs Canidae. I feel it is a great food, and we noticed a huge difference in our dogs coats, teeth, softness, less poops.... We were feeding Eukanuba, and Jada wasn't doing very well on it. Taurus has always been fed Eukanuba, and was doing okay on it, but Jada has very dry skin, and her nose was constantly dry and flakey.
We switched them to Canidae, and within a couple weeks, her nose has wet again, and she wasn't scrtaching at her dry skin. It is a bit more expensive them the Eukanuba, but the dogs eat less of it, so it works about them same because the bag lasts us longer.

Have you thought of making your dog's food for them? It may be a bit more work but its healthier for the dogs if you have the right amount of research and can balance meals. Try reading Dr. Pitcairn's book on a natural diet for dogs and cats.

I feed my dogs wellness when I have to...its a good food..other than that I cook food for them...no raw meat though...raw veggies are ok but I prefer to cook the meat personally.

Well, since we're on the topic, I did a search for Precise brand dog food and came up with nothing. Has anyone ever used this food. It was recommended at a health pet food store and the owners are into bull terriers. They claim this stuff is the best, but they are dealers so...

Precise is another food I have dealt with for almost 10 years. It's a 15+ year old formula that isn't, in my opinion, worth your time or money. They tried to catch up with their Plus formula but they missed. We are phasing it out......pretty much have but for one or two customers.

Might want to consider looking into Timberwolf, top of the heap at the moment.........give it a couple of years, something else will come along that's better. It isn't cheap but feeds real well and pits do great on any of the formulas, 5 to choose from at this time. If you're gonna spend almost 40 bucks on lesser foods, give this one a go. I can pretty much guarantee you're gonna be happy with it.